小白藜檢視原始碼討論檢視歷史
| 小白藜 |
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中文學名:小白藜 拉丁學名:Chenopodium iljinii 二名法:Chenopodium iljinii Golosk. 界:植物界 門:被子植物門 綱:雙子葉植物綱 亞 綱:石竹亞綱 目:石竹目 科:藜科 族:藜族 屬:莧科藜屬 種:小白藜 |
小白藜，是藜科一年生草本，高10-30厘米，全株有粉。莖通常平臥或斜升，多分枝，有時自基部分枝而無主莖。 [1]
小白藜形態特徵
葉片卵形至卵狀三角形，通常長0.5-1.5厘米，寬0.4-1.2厘米，兩面均有密粉，呈灰綠 小白藜 色，先端急尖或微鈍，基部寬楔形，全緣或三淺裂，側裂片在近基部；葉柄細瘦，長0.4-1厘米。
花簇於枝端及葉腋的小枝上集成短穗狀花序；花被裂片5，較少為4，倒卵狀條形至矩圓形，背面有密粉，無隆脊;花葯寬橢圓形，花絲稍短於花被;柱頭2，絲狀，花柱不明顯。
胞果頂基扁。種子雙凸鏡形，有時為扁卵形，橫生，較少為斜生,直徑0.8-1.2毫米，黑色，有光澤，表面近平滑或微有溝紋。
花果期8-10月。
Herbs annual, 10-30 cm tall, farinose throughout. Stem usually prostrate or obliquely spreading, much branched, sometimes branched only from base. Petiole slender, 0.4-1 cm; leaf blade gray-green, ovate to ovate-triangular, usually 0.5-1.5 × 0.4-1.2 cm, farinose on both surfaces, base broadly cuneate, margin entire or 3-lobed, apex subobtuse or acute; lateral lobes attached near base of leaf blade, apex obtuse. Glomerules forming short spikes on axillary branchlets. Perianth segments (4 or)5, obovate-linear to oblong, not keeled, abaxially densely farinose. Filaments slightly shorter than perianth; anthers broadly oblong. Style obscure; stigmas 2, filiform. Utricle depressed. Seed horizontal, rarely oblique, black, sublustrous, lenticular, sometimes depressed ovoid, 0.8-1.2 mm in diam., subsmooth or slightly pitted. Fl. and fr. Aug-Oct.
Valley terraces, slopes, drier grasslands; 2000-4000 m. W Gansu, Ningxia, Qinghai (Qilian Shan), NW Sichuan, Xinjiang [Kazakhstan].
The closely related, C Asian Chenopodium pamiricum Iljin (in Shishkin, Fl. URSS 6: 873. 1936) may be expected to occur in the mountains of W China. Probably some Chinese records of C. iljinii refer to that species.
小白藜生長環境
生於海拔2000-4000米之間的河谷階地、山坡及較乾旱的草地。